X-Git-Url: http://git.efficios.com/?p=argpar.git;a=blobdiff_plain;f=argpar%2Fargpar.h;h=3340d90f593031756a6e8d80f5a704ddff6f89a1;hp=3cd437fa043d68390a933f4f4c1e99912935027f;hb=10197dcc488abe5287c501bc4bfc8e23f1bc2538;hpb=8b95d883334b188d05cb1967980eae628e295d10

diff --git a/argpar/argpar.h b/argpar/argpar.h
index 3cd437f..3340d90 100644
--- a/argpar/argpar.h
+++ b/argpar/argpar.h
@@ -593,6 +593,8 @@ void argpar_iter_destroy(struct argpar_iter *iter);
 /*!
 @brief
     Return type of argpar_iter_next().
+
+Error status enumerators have a negative value.
 */
 enum argpar_iter_next_status {
 	/// Success
@@ -602,16 +604,16 @@ enum argpar_iter_next_status {
 	ARGPAR_ITER_NEXT_STATUS_END,
 
 	/// Unknown option error
-	ARGPAR_ITER_NEXT_STATUS_ERROR_UNKNOWN_OPT,
+	ARGPAR_ITER_NEXT_STATUS_ERROR_UNKNOWN_OPT = -1,
 
 	/// Missing option argument error
-	ARGPAR_ITER_NEXT_STATUS_ERROR_MISSING_OPT_ARG,
+	ARGPAR_ITER_NEXT_STATUS_ERROR_MISSING_OPT_ARG = -2,
 
 	/// Unexpected option argument error
-	ARGPAR_ITER_NEXT_STATUS_ERROR_UNEXPECTED_OPT_ARG,
+	ARGPAR_ITER_NEXT_STATUS_ERROR_UNEXPECTED_OPT_ARG = -3,
 
 	/// Memory error
-	ARGPAR_ITER_NEXT_STATUS_ERROR_MEMORY,
+	ARGPAR_ITER_NEXT_STATUS_ERROR_MEMORY = -12,
 };
 
 /*!